I have the Yaesu FT-1000D. There is no audio out through the external speaker jack or the internal speaker. The headphone jack works well as the stereo line out jack work as it should. No other problems, Radio works 100% other than the speaker jack and the internal speaker doesn't work at all. Any ideas? Thank You in advance.. Brian

Seriously though, sounds like a blown final audio amplifier stage to me. I don't know anything about the FT-1000D but I bet if you find a schematic and work backwards from the speaker, the first (or maybe 2nd or 3rd) active device you find has given up the ghost..

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